Utilizing waste heat of compressors.



F. SHUMAN. UTLIZING WASTEHEAT OF GOMPRESSORS. APPLICATION FILED MAB.. 1B, 1907. RENEWED EAY 21, 1910.

' uid as well power cylinder suing from the cylinder 1 ether, ammonia, liquelied FRANK SHMAN, GF PHLADELHL,

ENNSYLVAN.

UP'XLZNG lTASTE -ET Of? COMPRESSOES.

Application led Merch 18, 1997,

To all whom it roi/were:

Be it known that It, FRANK Snoeien', a l citizen of the United States, residing iii llhiladelphia7 Pennsylvania, have invented certain improvements in Utilizing -i/Vaste Heat of Compressors, of which the following is a specilication. i

The object or' my invention for the performance of heat due to is to utilize mechanical work, the compression of an elastic as waste heeft of the engine used for operating the coi'npressor, an ohject which l attain in the following.;` manner, reference being had to the accompanying drawing, i n which:

Figure l illustrates one form of apparatus or carrying out iny invention, and Fig. 2 a modified forin of apparatus for the purpose.

In Fig, l of the drawing7 l represents the and 9, the ceinpressil'in cylinder of an apparatus for compressing :iir or other elastic iiuid, 3 reiiu'esenting the inletv Valve chest of the compressor with its yinlet pipe 4t, and representing the ont-.let chest with its discharge pipe. 6, the vulve chest or' the power cylinder being represented et V, J the motive iuid supplyT pipe at S, and the exhaust pipe at 9,

The power l I I generator, represented at l0, eontains a power-developing agent having a relatively low boiling point, meaning by this :i boiling point considerably lower than the temperature of the compressed fluid isor o the motive power Ailuid exhausted frein the cylinder 2, whereby the heat of these fluids will serve to vaporize the power-developing agent under suoli pressure as inay be needed for the Work to he performed thereby. As instances or poweredeveloping agents' which may be effectively eni loyed, l may mention iiaphtha, tetra -cliloriil of carbon, di -niethyl oxid, sulfurous acid gas, liquefied carbonio acid gas, etc.

Usually the exhaust. from the power cylinder or" the compressor, especially if the' latter is operated by steam, is of considerably lower temperature than the compressed elastic Huid delivered by the compression cylinder l, and for the purpose of Vaporizing the power-developing agent in the gcnerster l0, l therefore prefer to use independspeecotien of Letters Patent.

Fetented Seo. 2*?,

Serialro. 362,855.2. Renewed liiey 2l, 1919, Serial ro. @2365,

pipefroni the compression cylind r is coiled or otherwise disposed in both the upper and lower portions of the generator, the exhaust steam coil heing represented at il the coil .containing the sir or other coni pressed elastic fluid being represented et 'lie reason for this Tvill he understood when. it is herne in mind that the liquid power-developing agent in the .generator has the highest temperature at the siiraee and s gradually decreasing temperature frein top to bottom, for instance 'the surfue@ temperature niey be 500 degrees?. or more, while the teniperzeture at the bottone may he degrees F. or? less. `Loss of heat would 'therefore result if the exhaust pipe from the cylinder l entered the generator l0 et' a point where the temperature or' the powerdeveloiiing agent had been raised by the coil 12 to a, degree higher peinture of the motive fluid escaping from thel power cylinder, hence the (leveloping agent does not exceed the teur pereture of the exhaust fluid passing Athrough seid coil.

in many cases. it may he iidyisable, oei-'ore eoiireying` to the generator the exhaust trom the power cylinder, to poss 'it through a. jacket, suchl afs 20, surrounding the compression cylinder; thereby increesirigathe-te pereture ofthe exhaust, this heingespeeia ly advantageous in those cases in which' the temperature due to compression of the elastic "fluid in the cylinder 2 is so high, that unless reduced, it will interfere with the proper 'operation or" the compressor.

rihe generator hes a, whereby the vapo-r under pressure isconveyed to an engine or other apparatus in which it is t'o loc used, and'fit is also profvided at the bottoni with a return pipe ll through which the condensed and cooled power-developing agent, `after such use, is brought back to the generator for revaporization. The upper portion of the coil l2 may be extended through the Vapor charm bor of the generator, es shown when it is desired to superlieat the vapor.-

if a steam engine `'is the motive power agent employed for operating the foin presser, the'y .condensed steam from the coil l1 may be permitted to run to Waste or back tothe boiler from the discharge pipe 15.01V

than the tenidischarge pipe 13,v

ioo

' waste heat of compressors,

'that in the apparatus shown in .both coils 11 and 12 is not essential to iny invention, as properlyiconneeted but separate generators, one containing the exhaust pipe oeilv and the other the compressed Afluid pipe coil, may be used if desired, as shown rit-l0 and 10b in Fig. 2, and while l have shown in the drawing a direct-acting engine for operatiii the compressor, any other deengine may be used. It will also be understood that no attempt has been made in the drawing to show the relative sizesor location of the diereiit parts of the apparatus and that non-conducting obverings will be provided u on all parts or" the apparatus at which radiation or absorptionl or heat is not desired.

Although in the apparatus shown in Fig. 2, two generators are used, volumes ot powen developing agent in these generators are connected and practically constitute one body, as in Fig. l, the only difference being Fig. l, the

`eoinpressed fluio pipe eoil acts upon the same portion of the agent as the exhaust pile coil, as well as upon an additional portion of the saine.

'1. lThe inode herein described or utilizing waste heat of compressors, said inode Consisting in causing the exhaust inotive power fluid of the compressor engine to heat one portion o' a oWer-developing agent having a relatively the compressed fluid to heat to a higher temperature another portion of said agent.

The inode hereinideseribed of utilizing said inode consisting in Causing the exhaustinotive power fluid of the compressor engine and the eoii'i pressed fluid, oonjointly, to heat one portion of a power-developing agent 'having a relatively low boiling point, and causing said compressed. fluid to heat to a liighei' temperature another portion of said agent.

3. The inode herein described of utilizing waste heat of compressors, said inode consisting in raising the temperature of the exhaust motive power fluid of the compressor engine by heat of the eon'ipressed fluid, causing said exhaust ii'iotivo power fluid, thus inow boiling point, and causingA ergere creased in temperature,

to heat one portion ot another portion of said agent.

' 4. The inode herein described of utilizing waste heat of compressors, said inode oonsistiiig in causing the exhaust niotive power fluid of the compressor engine the temperature of the compressed to first lower fluid in the Compressor and then to heat one port-ion of a powerlevelo-piiig agent having point, and causing the heat toy a higher tein- ,tively low boiling eonipressed fluid to a relaperature another portion of said agent.

'5.-The inode herein described or' utilizing waste heat of compression, sisting in vaporizing, pressed fluid,

said inode conby heat of the ooma power-developing agent having a relatively low boiling point and also causing the heat of the compressed fluid to superlieat the vapor under pressure thus produced.

G. The inode herein described of utilizing waste heat of compressors,

said inode consisting in causing the exhaust motive Vpower fluid of the compressor engine to heat. oneportioii of a power-developing agent having causing a relatively low boiling point, and the compressed perature another fluid to heat to a higlier'teinportion of said agent and the vapor under pressure thereby produced. 'i'. rlhe inode herein described of utilizing waste heat of compressors,

said inode consisting in causing the exhaust motive power fluid or the Compressor pressed fluid eonjointly to heat one engine and the oomportion of a power-developing agent having a relatively low compressed fluid to heat, peinture, another the vapor under pressure thereby boiling point and also causing the to a higher teinportioii of said-agent and' rod uee d.

8. The inodehei'ein described of utilizing the waste heat of compressors,

tive power fluid ofthe compressor said inode consisting in first causingv the exhaust ino engine to reduce the temperature of the compressed fluid in the eoiiipressoi', and -tlien to portion ora power-developiiig agen a relatively low boiling point, and

heat one t having causing the compressed fluid to heat'to a higher teinpeinture another portion ofsaid the vapor underpi'essure thereby p agent and rodueed.

lii testimony whereof, I haveY signed'iiiy naine to this specification, two subscribing witiiesses.-

FRANK SHU in the presence ot MAN.

iis 

